Cisco Networking Academy
Cisco Networking Academy · NetworkingCisco's official courses; many beginner self-paced ones are free, such as networking basics.
The first line of help for staff: devices, accounts, email, printers and the network. It teaches you all of IT fast and opens doors to networks, systems and security.
Resolves users' daily tickets.
Solves harder issues and manages devices and policies centrally.
Moves into systems administration or leads the support team.
Manages the organisation's IT services and service levels.
Years are approximate and vary by employer. What matters is that each stage builds on the last.
Nearly every organisation: universities, hospitals, companies, government and IT service firms.
Tap any certification for details. You don't need them all: pick one per level based on where you work.
Cisco's official courses; many beginner self-paced ones are free, such as networking basics.
Perhaps the best-known free CCNA course on YouTube: excellent teaching with Packet Tracer labs.
A broad start: Linux, SQL, Python and security tools, for beginners.
One of the most popular Security+ prep courses.